/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 * 02111-1307, USA.
 *
 * http://www.gnu.org/copyleft/gpl.html
 */
package l1j.server.server.datatables;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.logging.Level;
import java.util.logging.Logger;

import l1j.server.DatabaseFactory;
import l1j.server.GameServer.LanSecurityManager;
import l1j.server.server.utils.NetAddressUtil;
import l1j.server.server.utils.SQLUtil;

public class IpTable {

	private static Logger _log = Logger.getLogger(IpTable.class.getName());

	private static ArrayList<String> _banip;

	private static ArrayList<String> _host;//TODO ban_ipテーブルの不具合を修正

	private static ArrayList<Integer> _mask;//TODO ban_ipテーブルの不具合を修正

	public static boolean isInitialized;

	private static IpTable _instance;

	public static IpTable getInstance() {
		if (_instance == null) {
			_instance = new IpTable();
		}
		return _instance;
	}

	private IpTable() {
		if (!isInitialized) {
			_banip = LanSecurityManager.BANIPMAP;
			_host = new ArrayList<String>();//TODO ban_ipテーブルの不具合を修正
			_mask = new ArrayList<Integer>();//TODO ban_ipテーブルの不具合を修正
			this.getIpTable();
		}
	}

	public void banIp(final String ip, String host) {//TODO
		Connection con = null;
		PreparedStatement pstm = null;
		try {
			host = (host==null? ip:host);
			con = DatabaseFactory.get().getConnection();
			//TODO 追加判斷欄位host表,mask表
			pstm = con.prepareStatement("INSERT INTO ban_ip SET ip=?, host=?, mask=?");
			//TODO 追加判斷欄位host表,mask表
			pstm.setString(1, ip);
			pstm.setString(2, host);//TODO ban_ipテーブルの不具合を修正
			pstm.setInt(3, 32);//TODO ban_ipテーブルの不具合を修正
			pstm.execute();
			_banip.add(ip);
			_host.add(host);//TODO ban_ipテーブルの不具合を修正
			_mask.add(32);//TODO ban_ipテーブルの不具合を修正
		} catch (final SQLException e) {
			_log.log(Level.SEVERE, e.getLocalizedMessage(), e);
		} finally {
			SQLUtil.close(pstm);
			SQLUtil.close(con);
		}
	}

	public void getIpTable() {
		Connection con = null;
		PreparedStatement pstm = null;
		ResultSet rs = null;
		try {
			con = DatabaseFactory.get().getConnection();
			pstm = con.prepareStatement("SELECT * FROM ban_ip");
			rs = pstm.executeQuery();
			while (rs.next()) {
				String ip = rs.getString(1);
				_banip.add(ip);
				LanSecurityManager.BANIPMAP.add(ip);
				_host.add(rs.getString(2));//TODO ban_ipテーブルの不具合を修正
				_mask.add(rs.getInt(3));//TODO ban_ipテーブルの不具合を修正
			}
			isInitialized = true;
		} catch (final SQLException e) {
			_log.log(Level.SEVERE, e.getLocalizedMessage(), e);
		} finally {
			SQLUtil.close(rs);
			SQLUtil.close(pstm);
			SQLUtil.close(con);
		}
	}

	public boolean isBannedIp(final String s) {
		return _banip.contains(s);
	}

	//TODO ban_ipテーブルの不具合を修正
	public boolean isBannedIpMask(final String s) {
		for(int i=0;i < _banip.size();i++){
			final String banip_tmp = _banip.get(i);
			final int mask_tmp = _mask.get(i);
			if(NetAddressUtil.isScorp(s, banip_tmp, mask_tmp)){
				return true;
			}
		}

		return false;
	}
	//TODO ban_ipテーブルの不具合を修正

	public boolean liftBanIp(final String ip, String host) {//TODO ban_ipテーブルの不具合を修正
		boolean ret = false;
		Connection con = null;
		PreparedStatement pstm = null;
		host = (host==null? ip:host);
		try {
			con = DatabaseFactory.get().getConnection();
			pstm = con.prepareStatement("DELETE FROM ban_ip WHERE ip=?");
			pstm.setString(1, ip);
			pstm.execute();
			_banip.remove(_banip.indexOf(ip));
			_host.remove(_host.indexOf(host));//TODO ban_ipテーブルの不具合を修正
			_mask.remove(_mask.indexOf(32));//TODO ban_ipテーブルの不具合を修正
			ret = true;
		} catch (final SQLException e) {
			_log.log(Level.SEVERE, e.getLocalizedMessage(), e);
		} finally {
			SQLUtil.close(pstm);
			SQLUtil.close(con);
		}
		return ret;
	}

}
